6 pack in 30 days Grab a pair of 10- to 12-pound dumbbells and lie on your back with your arms behind you. Extend your legs at a 45-degree angle (A). Bring your arms up over your chest and lift your shoulders off the mat while raising your legs until theyre perpendicular to the floor (B). Return to start (dont let your legs touch the floor). Thats 1 rep. Works upper back, abs, and hips
Get into an elbow plank position. Raise your right arm in front of you so it's parallel to the ground and lift your left leg at least two inches. "Fly" your arm and leg out, moving them away from your head and body, then reverse back to the starting position. Drop down, then repeat with the opposite arm and leg. That's one rep. Do 15.